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  • 21
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    Copepod community ingestion and respiration in the Eastern Atlantic Ocean during POLARSTERN cruise PS81 (ANT-XXIX/1) (2018)
    PANGAEA
    In:  University of Bremen, Marine Zoology | Supplement to: Bode, Maya; Koppelmann, Rolf; Teuber, Lena; Hagen, Wilhelm; Auel, Holger (2018): Carbon Budgets of Mesozooplankton Copepod Communities in the Eastern Atlantic Ocean-Regional and Vertical Patterns Between 24°N and 21°S. Global Biogeochemical Cycles, 32(5), 840-857, https://doi.org/10.1029/2017GB005807
    Details
    Publication Date: 2023-08-05
    Description: The copepods' impact on vertical carbon flux was assessed for stratified depth layers down to 2000 m at six stations along a transect between 24°N and 21°S in the eastern Atlantic Ocean in October/November 2012. Total copepod community consumption ranged from 202-604 mg C m⁻² day⁻¹, with highest ingestion rates in the tropical North Atlantic. Calanoids consumed 75-90% of the particulate organic carbon (POC) ingested by copepods, although the relative contribution of cyclopoids (mostly Oncaeidae) increased with depth. Net ingestion (=consumption - fecal pellet egestion) of POC varied from 106-379 mg C m⁻² day⁻¹ for calanoids and 37-51 mg C m⁻² day⁻¹ for cyclopoids, corresponding to 16-58% and 5-9%, respectively, of primary production (PP). In total, 9-33% and 2-5% of PP were respired as inorganic carbon by calanoids and cyclopoids, respectively. Copepod ingestion was highly variable between stations and depth layers, especially in the epi- and upper mesopelagic zone. Diel vertical migrants such as Pleuromamma enhanced the vertical flux to deeper layers, particularly in the region influenced by the Benguela Current. The impact of copepod communities on POC flux decreased below 1000 m and POC resources reaching the bathypelagic zone were far from being fully exploited by copepods. As key components, copepods are important mediators of carbon fluxes in the ocean. Their biomass, community composition and interactions strongly affect the magnitude of organic carbon recycled or exported to deeper layers. High variability, even at smaller vertical scales, emphasizes the complex dynamics of the biological carbon pump.
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 22
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    (Table S2) Numbers and carapace widths of C. maenas and H. sanguineus sampled around Helgoland (2017)
    PANGAEA
    In:  Supplement to: Jungblut, Simon; Beermann, Jan; Boos, Karin; Saborowski, Reinhard; Hagen, Wilhelm (2017): Population development of the invasive crab Hemigrapsus sanguineus (De Haan, 1853) and its potential native competitor Carcinus maenas (Linnaeus, 1758) at Helgoland (North Sea) between 2009 and 2014. Aquatic Invasions, 12(1), 85-96, https://doi.org/10.3391/ai.2017.12.1.09
    Details
    Publication Date: 2023-11-14
    Description: The Asian shore crab Hemigrapsus sanguineus (De Haan, 1853) has recently established populations in the North Sea and now occurs within the native ranges of the green crab Carcinus maenas (Linnaeus, 1758). To determine potential competitive effects and to assess the progress of the invasion, species-specific population characteristics (numerical abundances, biomasses, and size distributions) of the two species around the island of Helgoland (German Bight, southern North Sea) were compared for surveys conducted in 2009 and 2014. Sampling sites were chosen based on accessibility and differed in their topography and wave exposure, which allowed testing for the influence of these factors on the establishment success of H. sanguineus. The numerical abundance and biomass of H. sanguineus increased markedly and approached those of C. maenas in 2014. At a sheltered site, H. sanguineus even outnumbered C. maenas, whereas the converse was observed at a site exposed to strong winds and waves. Although such contrasting abundance patterns between the native and the introduced shore crab may be the result of direct interference, the dominance of H. sanguineus at the sheltered site may also be explained by enhanced larval settling rates caused by odors of conspecifics. The results suggest that the invasion of H. sanguineus has not yet reached its equilibrium, and population abundances in the North Sea are expected to further increase in the future.
    Type: Dataset
    Format: application/zip, 4 datasets
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  • 23
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    (Table S2) Numbers and carapace widths of Carcinus maenas sampled around Helgoland, August 2009 (2017)
    PANGAEA
    Details
    Publication Date: 2023-11-14
    Keywords: Augusta Mole; Carcinus maenas, carapax width; Carcinus maenas, female; Carcinus maenas, male; DATE/TIME; Event label; Felswatt; HAND; Helgoland, North Sea; Kringel; Latitude of event; Longitude of event; Nordstrand; Northeastern_site; Northwestern_site; Sampling by hand; Southeastern_site; Southwestern_site
    Type: Dataset
    Format: text/tab-separated-values, 565 data points
    Location Call Number Limitation Availability
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  • 24
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    (Table S2) Numbers and carapace widths of Hemigrapsus sanguineus sampled around Helgoland, August 2009 (2017)
    PANGAEA
    Details
    Publication Date: 2023-11-14
    Keywords: Augusta Mole; DATE/TIME; Event label; Felswatt; HAND; Helgoland, North Sea; Hemigrapsus sanguineus, carapax width; Hemigrapsus sanguineus, female; Hemigrapsus sanguineus, male; Kringel; Latitude of event; Longitude of event; Nordstrand; Northeastern_site; Northwestern_site; Sampling by hand; Southeastern_site; Southwestern_site
    Type: Dataset
    Format: text/tab-separated-values, 199 data points
    Location Call Number Limitation Availability
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  • 25
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    (Table S2) Numbers and carapace widths of Carcinus maenas sampled around Helgoland, August 2014 (2017)
    PANGAEA
    Details
    Publication Date: 2023-11-14
    Keywords: Augusta Mole; Carcinus maenas, carapax width; Carcinus maenas, female; Carcinus maenas, male; DATE/TIME; Event label; Felswatt; HAND; Helgoland, North Sea; Kringel; Latitude of event; Longitude of event; Nordstrand; Northeastern_site; Northwestern_site; Sampling by hand; Southeastern_site; Southwestern_site
    Type: Dataset
    Format: text/tab-separated-values, 543 data points
    Location Call Number Limitation Availability
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  • 26
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    (Table S2) Numbers and carapace widths of Hemigrapsus sanguineus sampled around Helgoland, August 2014 (2017)
    PANGAEA
    Details
    Publication Date: 2023-11-14
    Keywords: Augusta Mole; DATE/TIME; Event label; Felswatt; HAND; Helgoland, North Sea; Hemigrapsus sanguineus, carapax width; Hemigrapsus sanguineus, female; Hemigrapsus sanguineus, male; Kringel; Nordstrand; Northeastern_site; Northwestern_site; Sampling by hand; Southeastern_site; Southwestern_site
    Type: Dataset
    Format: text/tab-separated-values, 473 data points
    Location Call Number Limitation Availability
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  • 27
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    Abundance and distribution of planktonic Copepoda during POLARSTERN cruise PS81 (ANTXXIX/1) (2018)
    PANGAEA
    In:  University of Bremen, Marine Zoology | Supplement to: Bode, Maya; Hagen, Wilhelm; Cornils, Astrid; Kaiser, Patricia; Auel, Holger (2018): Copepod distribution and biodiversity patterns from the surface to the deep sea along a latitudinal transect in the eastern Atlantic Ocean (24°N to 21°S). Progress in Oceanography, 161, 66-77, https://doi.org/10.1016/j.pocean.2018.01.010
    Details
    Publication Date: 2023-08-05
    Description: Vertical distribution, community structure and diversity of calanoid copepods were studied at six stations along a latitudinal transect from 24°N to 21°S in the eastern Atlantic Ocean, resolving nine discrete depth layers to 2000 m. Total copepod abundances integrated from 0-2000 m ranged from 148,000 to 197,000 ind m-2. Usually, abundance and biomass were highest in the upper 100 m, exponentially decreasing with increasing depth. Only at the northern and southernmost stations, a deeper biomass maximum was observed at 100-200 m and 200-400 m, respectively. In total, 26 families, 79 genera and at least 172 species were identified among calanoid copepods. Although there were certain regional differences in species composition between tropical and subtropical stations from north to south, depth had the strongest impact on the community structure of calanoids, resulting in statistically distinct communities in different depth zones. Maximum diversity of calanoids was observed between 100-200 m in the tropical zone and between 400-700 m in subtropical regions. Various interacting mechanisms such as vast spatial extent of the ecosystem, physical stability, avoidance from predators under dim light, small population sizes and high biologically generated heterogeneity possibly contribute to the biodiversity maxima in the twilight zone.
    Keywords: Acartia spp.; Acrocalanus spp.; Aetideidae, copepodites; Aetideopsis carinata; Aetideopsis rostrata; Aetideopsis sp.; Aetideus acutus; Aetideus arcuatus; Aetideus armatus; Aetideus bradyi; Aetideus giesbrechti; Amallothrix spp.; ANT-XXIX/1; Arietellus spp.; Augaptilidae; Augaptilus longicaudatus; Augaptilus megalurus; Augaptilus spp.; Brodskius cf. paululus; Calanidae, copepodites; Calanoida, copepodites; Calanoida, total; Calanoides natalis; Calanus sp.; Calocalanus spp.; Canarias Sea; Candacia spp.; Centraugaptilus sp.; Centropages bradyi; Cephalophanes spp.; Chiridiella smoki; Chiridiella sp.; Chiridius spp.; Chirundina streetsii; Clausocalanus spp.; Comment; Counting, copepoda; Ctenocalanus vanus; Date/Time of event; Delibus cf. nudus; Depth, bottom/max; Depth, top/min; DEPTH, water; Disco spp.; Disseta palumbii; Elevation of event; Euaugaptilus spp.; Eucalanus hyalinus; Euchaeta acuta; Euchaeta marina; Euchaeta media; Euchaeta paraconcinna; Euchaeta spp.; Euchaetidae, copepodites; Euchirella amoena; Euchirella curticauda; Euchirella pulchra; Euchirella rostrata; Euchirella splendens; Euchirella spp.; Event label; Falsilandrumius sp.; Farrania spp.; Gaetanus armiger; Gaetanus brevicornis; Gaetanus brevispinus; Gaetanus kruppii; Gaetanus latifrons; Gaetanus miles; Gaetanus minor; Gaetanus pileatus; Gaetanus spp.; Gaetanus tenuispinus; Gaussia princeps; Haloptilus acutifrons; Haloptilus austini; Haloptilus fons; Haloptilus mucronatus; Haloptilus oxycephalus; Haloptilus plumosus; Haloptilus spiniceps; Haloptilus spp.; Hemirhabdus sp.; Heteramalla sarsi; Heterorhabdus spinifrons; Heterorhabdus spp.; Heterostylites major; Labidocera spp.; Latitude of event; Longitude of event; Lophothrix frontalis; Lophothrix humilifrons; Lophothrix latipes; Lophothrix quadrispinosa; Lophothrix similis; Lophothrix spp.; Lucicutia aurita; Lucicutia bicornuta; Lucicutia curta; Lucicutia grandis; Lucicutia lucida; Lucicutia macrocera; Lucicutia magna; Lucicutia spp.; Lucicutia wolfendeni; Mecynocera clausi; Megacalanus princeps; Mesocalanus tenuicornis; Metridia brevicauda; Metridia curticauda; Metridia discreta; Metridia effusa; Metridia lucens; Metridia princeps; Metridia spp., copepodites; Metridia venusta; Microcalanus spp.; Mimocalanus spp.; Monacilla tenera; Monacilla typica; Mospicalanus sp.; MSN; Multiple opening/closing net; Nannocalanus minor; Neocalanus gracilis; Neocalanus robustior; Nullosetigera bidentata; Nullosetigera helgae; Nullosetigera impar; Nullosetigera mutica; Nullosetigera spp.; Oithonidae; Oncaeidae; Onchocalanus sp.; Paracalanus spp.; Paraeuchaeta aequatorialis; Paraeuchaeta gracilis; Paraeuchaeta sp.; Paraeuchaeta spp.; Paraheterorhabdus cf. compactus; Paraugaptilus sp.; Pareucalanus cf. sewelli; Phaenna spinifera; Phaennidae; Pleuromamma abdominalis; Pleuromamma borealis; Pleuromamma quadrungulata; Pleuromamma robusta; Pleuromamma spp.; Pleuromamma xiphias; Polarstern; Pontellina spp.; PS81; PS81/005-6; PS81/008-6; PS81/009-4; PS81/010-3; PS81/014-4; PS81/017-7; Pseudhaloptilus sp.; Pseudoamallothrix spp.; Pseudochirella sp.; Rhincalanus cornutus; Rhincalanus nasutus; Scaphocalanus spp.; Scolecithricella maritima; Scolecithricella spp.; Scolecithricella vittata; Scolecithrix bradyi; Scolecithrix danae; Scolecitrichidae; Scolecitrichopsis ctenopus; Scolecitrichopsis sp.; Scolecitrichopsis tenuipes; Scottocalanus helenae; Scottocalanus persecans; Scottocalanus securifrons; South Atlantic Ocean; Spinocalanus spp.; Subeucalanus mucronatus; Subeucalanus spp.; Subeucalanus subtenuis; Temora stylifera; Temorites brevis; Temorites elongata; Temorites minor; Temorites sarsi; Temorites spp.; Temoropia mayumbaensis; Temoropia minor; Teneriforma spp.; Tharybis sp.; Undeuchaeta cf. major; Undinella spp.; Undinula vulgaris; Valdiviella sp.; Volume
    Type: Dataset
    Format: text/tab-separated-values, 9412 data points
    Location Call Number Limitation Availability
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  • 28
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    Copepod community ingestion during POLARSTERN cruise PS81 (ANT-XXIX/1) (2018)
    PANGAEA
    In:  University of Bremen, Marine Zoology
    Details
    Publication Date: 2023-08-05
    Keywords: Acartia spp., ingestion rate of carbon; Acrocalanus spp., ingestion rate of carbon; Aetideidae, c1-c3, ingestion rate of carbon; Aetideopsis spp., ingestion rate of carbon; Aetideus spp., ingestion rate of carbon; Amallothrix spp., ingestion rate of carbon; ANT-XXIX/1; Arietellus spp., ingestion rate of carbon; Augaptilidae, ingestion rate of carbon; Augaptilus spp., ingestion rate of carbon; Brachycalanus spp., ingestion rate of carbon; Brodskius cf. paululus, ingestion rate of carbon; Calanidae, c1-c3, ingestion rate of carbon; Calanoida, ingestion rate of carbon; Calanoida indeterminata, copepodites, ingestion rate of carbon; Calanus sp., ingestion rate of carbon; Calculated; Calocalanus spp., ingestion rate of carbon; Canarias Sea; Candacia spp., ingestion rate of carbon; Carbon, organic, particulate, flux; Centraugaptilus sp., ingestion rate of carbon; Centropages bradyi, ingestion rate of carbon; Cephalophanes spp., ingestion rate of carbon; Chiridiella smoki, ingestion rate of carbon; Chiridius poppei, ingestion rate of carbon; Chirundina streetsii, ingestion rate of carbon; Clausocalanus spp., ingestion rate of carbon; Comment; Ctenocalanus cf. vanus, ingestion rate of carbon; Cyclopoida, ingestion rate of carbon; Date/Time of event; Delibus cf. nudus, ingestion rate of carbon; Depth, bottom/max; Depth, top/min; DEPTH, water; Disco spp., ingestion rate of carbon; Disseta palumbii, ingestion rate of carbon; Elevation of event; Euaugaptilus spp., ingestion rate of carbon; Eucalanus hyalinus, ingestion rate of carbon; Euchaeta spp., ingestion rate of carbon; Euchaetidae, c1-c3, ingestion rate of carbon; Euchirella spp., ingestion rate of carbon; Event label; Falsilandrumius sp., ingestion rate of carbon; Farrania spp., ingestion rate of carbon; Gaetanus spp., ingestion rate of carbon; Gaussia princeps, ingestion rate of carbon; Haloptilus spp., ingestion rate of carbon; Hemirhabdus sp., ingestion rate of carbon; Heteramella sp., ingestion rate of carbon; Heterorhabdus spp., ingestion rate of carbon; Heterstylites major, ingestion rate of carbon; Labidocera spp., ingestion rate of carbon; Latitude of event; Longitude of event; Lophothrix spp., ingestion rate of carbon; Lucicutia spp., ingestion rate of carbon; Mecynocera clausii, ingestion rate of carbon; Megacalanus princeps, ingestion rate of carbon; Mesocalanus tenuicornis, ingestion rate of carbon; Metridia spp., ingestion rate of carbon; Microcalanus spp., ingestion rate of carbon; Mimocalanus spp., ingestion rate of carbon; Monacilla spp., ingestion rate of carbon; Mospicalanus sp., ingestion rate of carbon; MSN; Multiple opening/closing net; Nannocalanus minor, ingestion rate of carbon; Neocalanus spp., ingestion rate of carbon; Nullosetigera spp., ingestion rate of carbon; Oithona spp., ingestion rate of carbon; Oncaea spp., ingestion rate of carbon; Onchocalanus spp., ingestion rate of carbon; Paracalanus spp., ingestion rate of carbon; Paraeuchaeta spp., ingestion rate of carbon; Paraheterorhabdus cf. compactus, ingestion rate of carbon; Paraugaptilus sp., ingestion rate of carbon; Pareucalanus cf. sewelli, ingestion rate of carbon; Phaenna spinifera, ingestion rate of carbon; Pleuromamma spp., ingestion rate of carbon; Polarstern; Pontellina spp., ingestion rate of carbon; PS81; PS81/005-6; PS81/008-6; PS81/009-4; PS81/010-3; PS81/014-4; PS81/017-7; Pseudhaloptilus spp., ingestion rate of carbon; Pseudoamallothrix spp., ingestion rate of carbon; Pseudochirella sp., ingestion rate of carbon; Rhincalanus spp., ingestion rate of carbon; Scaphocalanus spp., ingestion rate of carbon; Scolecithricella spp., ingestion rate of carbon; Scolecithrichidae, ingestion rate of carbon; Scolecithrichopsis spp., ingestion rate of carbon; Scolecithrix spp., ingestion rate of carbon; Scottocalanus spp., ingestion rate of carbon; South Atlantic Ocean; Spinocalanus spp., ingestion rate of carbon; Subeucalanus spp., ingestion rate of carbon; Temora stylifera, ingestion rate of carbon; Temorites spp., ingestion rate of carbon; Temoropia spp., ingestion rate of carbon; Teneriforma spp., ingestion rate of carbon; Tharybis spp., ingestion rate of carbon; Undeuchaeta spp., ingestion rate of carbon; Undinella spp., ingestion rate of carbon; Undinula vulgaris, ingestion rate of carbon; Valdiviella spp., ingestion rate of carbon; Volume
    Type: Dataset
    Format: text/tab-separated-values, 4888 data points
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  • 29
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    (Table 2) Carbon and nitrogen content and fatty acid composition of seston samples, Oxyrrhis marina, Rhodomonas baltica and Thalassiosira weissflogii cultures used during the experiment in 2008 (2011)
    PANGAEA
    Details
    Publication Date: 2023-08-23
    Keywords: 6,9,12-Hexadecatrienoic acid of total fatty acids; 9,12-Hexadecadienoic acid of total fatty acids; 9-Tetradecenoic acid of total fatty acids; all-cis-4,7,10,13,16,19-Docosahexaenoic acid of total fatty acids; all-cis-5,8,11,14,17-Eicosapentaenoic acid of total fatty acids; all-cis-6,9,12,15-Octadecatetraenoic acid of total fatty acids; all-cis-7,10,13,16,19-Docosapentaenoic acid of total fatty acids; all-cis-9,12,15-Octadecatrienoic acid of total fatty acids; all-cis-9,12-Octadecadienoic acid of total fatty acids; Carbon, organic, total; Carbon, organic, total, standard deviation; Carbon/Nitrogen ratio; Carbon/Nitrogen ratio, standard deviation; cis-11-Icosenoic acid of total fatty acids; cis-11-Octadecenoic acid of total fatty acids (IUPAC: Octadec-11-enoic acid); cis-13-Octadecenoic acid of total fatty acids; cis-7-Hexadecenoic acid of total fatty acids; cis-9-Hexadecenoic acid of total fatty acids (IUPAC: (9Z)-hexadec-9-enoic acid); cis-9-Octadecenoic acid of total fatty acids (IUPAC: Octadec-9-enoic acid); Fatty acids, standard deviation; Hexadecanoic acid of total fatty acids; Monounsaturated fatty acids of total fatty acids; Nitrogen, organic; Nitrogen, organic, standard deviation; Octadecanoic acid of total fatty acids; Octadecatetraenoic acid 18:4(n-4) of total fatty acids; Pentadecanoic acid of total fatty acids; Polyunsaturated fatty acids of total fatty acids; Sample type; Saturated fatty acids of total fatty acids; Tetradecanoic acid of total fatty acids
    Type: Dataset
    Format: text/tab-separated-values, 189 data points
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  • 30
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    (Table 3) Dry mass, lipid, carbon and nitrogen content and fatty acid composition of Temora longicornis females from the field and during the experiment in 2008 (2011)
    PANGAEA
    Details
    Publication Date: 2023-08-23
    Keywords: 6,9,12,15-Hexadecatetraenoic acid of total fatty acids; 6,9,12-Hexadecatrienoic acid of total fatty acids; 9,12-Hexadecadienoic acid of total fatty acids; all-cis-4,7,10,13,16,19-Docosahexaenoic acid of total fatty acids; all-cis-5,8,11,14,17-Eicosapentaenoic acid of total fatty acids; all-cis-6,9,12,15-Octadecatetraenoic acid of total fatty acids; all-cis-9,12,15-Octadecatrienoic acid of total fatty acids; Carbon/Nitrogen ratio; Carbon/Nitrogen ratio, standard deviation; Carbon content per individual; cis-11-Icosenoic acid of total fatty acids; cis-11-Octadecenoic acid of total fatty acids (IUPAC: Octadec-11-enoic acid); cis-15-Tetracosenoic acid of total fatty acids; cis-9-Hexadecenoic acid of total fatty acids (IUPAC: (9Z)-hexadec-9-enoic acid); cis-9-Octadecenoic acid of total fatty acids (IUPAC: Octadec-9-enoic acid); Dry mass, standard deviation; Dry mass per individual; Experiment day; Fatty acids, standard deviation; Hexadecanoic acid of total fatty acids; Lipids, standard deviation; Lipids per individual; Monounsaturated fatty acids of total fatty acids; Nitrogen content per individual; Octadecanoic acid of total fatty acids; Octadecatetraenoic acid 18:4(n-4) of total fatty acids; Polyunsaturated fatty acids of total fatty acids; Saturated fatty acids of total fatty acids; Sex; Species; Standard deviation; Tetradecanoic acid of total fatty acids; Treatment: food
    Type: Dataset
    Format: text/tab-separated-values, 225 data points
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